BMW’s N55 engine was a remarkable achievement, even for a company as adept as building engines and cars as BMW. The first BMW engine to combine turbocharging, direct injection, Valvetronic and ...

Knuckle-dragging 5.0s are sure to benefit from AEM's powerful new engine manager immediately, and soon, so will 4.6s. By the time this makes print, the EEC V version of the AEM computer should be only ...

Back in "the old days" (2002-2003), the process for tuning a C5 was considerably more intricate than it currently is. At that time, you had to use one program to log and analyze data, and another to ...